Antiskid device



l3am. 18, 192i l G. R. ANDERSON ANTI SKID DEVICE Filed April 8, 1926 l d MTQRNEYS l Patented Jan. 18j' 192?.

' GUs'rAv R. ANDERSON, or EAST ELMHU'RST, NEW YORK, n. Y.

ANTISKID DEVICE.

Application led. April 8, 1.926. Serial No. 100,621.

This invention relates to anti-skid devices A especially designed for application to pneumatic tires of automobiles for the purpose of preventing skidding and to afford increased traction on slippery pavements and in mud, sand or snow.

One of the principal objects of the present invention is to provide an anti-skid device or traction-increasing means which includes elements having pointed spurs for more otlectually biting into the surface or roadbed, which spurs are capable of removal and `replacement when worn to a degree which thereby renders them unfit for further use, effecting a substantial economy in view of the fact that the more expensive and principal parts ot' the device are subjected to little or no wear. f

More specifically the invention comprehends an anti-skid device of the character .set forth which consists of a plurality of cil-cumferentially spaced tire-tread embracing elements having detachable and replaceable spurs and means for attaching and maintaining said elements in juxtaposition on the tire. d. l

rlhe inve'ntiou furthermore comprehends a device of the character set 4forth which 4is c 111paratively simple in its construction, inexpensive to manufacture, and which is highly efficient in its purpose.

With the above recited and other objects in view,- reference is'had to the following specification and accompanying drawings in which there is exhibited one example or embodiment of the invention which -is in no way intendedvas a limitation upon the scope of the appended claim as it is to be clearly understood that variations and modifications which properly fall within the scope of said claim may be resorted to when found eX- pedient.

In the drawings-- Figure 1 is a'fragmentary side view or" an automobile wheeifequipped with an antiskid device constructed .in accordance with the invention; v

Fig. 2 is a transverse 'ii-ragmentarysectional view on an enlarged scale, taken approximately on the line indicated at 2--2 in l*1 ig. 1;

Fig. 31s a 'fragmentary detail plan view of the device applied;

Fig. et is a iragmentary detail sectional vi'ew taken approximately onthe line 4-4 of Referring to the drawings by characters of reference, A designates an automobile wheel provided with the usual pneumatic tire B. y

The anti-skid device consists of a plurality of identically formed tire-tread embracing members C, each of which comprises a pair of inner and outer arcuate leaves 10 and 11, which are formed at one of their ends with alined hinged knuckles 12 for the reception of a hinging mea's, to permit of swinging of the same from a closed nested relation to an o en relation. The shape or configuration o the leavesis such that the same snugly embraces the tread portion of `the tire B whenarranged therewith, and the free or unhinged end 13 of the inner leaf' is formed withl an outwardly curved terminal 14. Adjacent its free end the inner leaf is provided with an outwardly projecting U-shaped offset 15. The-outer leaf adjacent its free or unhinged end is formed with av complementary receiving" bent upon itself and twisted intermittently-l at 20 to define a pair of loops 2 1 and 22. One'l'ead or a'length of'each loop 21 extends through the eye 18 or` hinged knuckle '12, while the opposite loops 22-0f the links or yokes ofan adjacent pair of vmembers C are joined by flexible connections, such as 'chain' sections 23, which together withthe loops 22 formfaJ side chain as is usual in f anti-skid tire chains. In order to'admi't of the application from the tire, each formed with a detachable means of connection 24. 4' f K In .order to provide the tread embracing members with -means for biting -into. the

road bed or surface for preventing skidding and increasingk traction, spur elements l25 or removal of thedevicev of said' side chainsis 4 retraite are provided in the nature of Shanks having heads 27 at the inner ends. The spurs are -inserted through openings 28 in vthe outer outer periphery of the'inner leaf.

When the pointed terminals 26 of the vspurs are worn and are to-be replaced, the cotter pins 17 are withdrawn, when the anti-skid device is. removed Vfrom the tire permitting relative swinging movement of.

links 19 will maintain the leaves in a closed relation, the veyes i8 snugly tting in the pointed outer terminals 26 and enlarged outwardly curved terminals 14C as particularly illustrated in Fig. 2. What is claimed is: v An anti-skid device for tires, including a plurality of circumferentially spaced tire tread embracing elements, means for at-l taching and maintaining said elements-'on the tire, consisting of a pair of leaves having hinged connection at one end, the outermost leaf o each element having openings therein, spurs including Shanks having pointed terminals at one end and heads at the opposite end, the' Shanks extending through the openings in the outer leaves and the heads positioned between the leaves, and detachable means for connecting the free ends of the leaves in overlapping nested relation, said means comprising a slotted portion adjacent the free end of one of the leaves, an odset looped portion adjacent the free end of the opposite leaf,- and a retain ingpin insertable 'through 'the part of the offset portion projecting through the slot.

l GUSTAV R. ANDERSUN. y 

